Selected reference resources:

• Critical Companion to Contemporary Marxism (SSRC)
• Dictionary of Marxist Thought
• Encyclopedia of Philosophy
• Encyclopedic Dictionary of Marxism, Socialism and Communism
• Karl Marx and Friedrich Engels: An Analytical Bibliography
• Marx-Engels Dictionary
• Marx and Engels, a Conceptual Concordance
• Marx and the Meaning of Capitalism: Introduction and Analyses (SSRC)

Suggested subject terms:

• Dialectical materialism
• Labor theory of value
• Marx, Karl, 1818-1883
• Marxian economics
• Marxist criticism
• Philosophy, Marxist

Suggested journals:

• Poznan Studies in the Philosophy of the Sciences and Humanities
• Rethinking Marxism

Databases:

• JSTOR. Provides image and full-text online access to back issues of selected scholarly journals in history, economics, political science, demography, mathematics and other fields of the humanities and social sciences.
• Philosopher's Index. Provides informative, author-written abstracts covering scholarly research in all areas of philosophy.
• Project Muse. Features a collection of online scholarly journals that focuses on the humanities, social sciences, and mathematics.

Suggested website(s):

• Marxists Internet Archive. "The MIA aims to maintain an archive of any and all writings which are Marxist or relevant to the understanding of Marxism and can be lawfully published."